Bearing for roller skate wheels



F. J. WAGNER 2,580,489 BEARING FOR ROLLER SKATE WHEELS Filed May 10, 1947 a g S 5 /2 IN ENTOR )f TTORNEY Patented Jan. 1, 1952 Frank Jflwagnenrranklln Square, N; Y. assignonof oneshaliv t o .Carroll M..-Bierman, Franklin Siiuare, NI Y5, and-Elizabeth vWagnen.adniirb. istfatrir'ofsaid Frank J." Wagner, deceased}, assignorof ohm-half to Elizabeth Wagner," FiankliitSiiuarey-NL Y.

Application -May .10, 1947 Serial No."-74'-I-,302.="

invention relates to roller skate-wheels, and

particularly to theg bearingsifoi'firoller skate Among the ,objects. of the, present. invention, it is aimed toprovide: anfnnproveax'eeanng for, a roller "skate" whe'el'fincludin'gtwo pairs? of ball bearing 1 racevva'ys, one pair of which is" ffixe'd be"- tweemthe wheel and'the shaft, and one raceway of "the other pair fixed on the shaft whileithe outerraceway oflthe second pair is free iir'an axial "direction relative to the axis of the shaft for self-adjustment..-

It is still another object of the present invention to provide' an' improvedbearing for a roller skate wheel including tw'o p'ai'rs' -of"ball bearing racewaysg theiinneniaraceways"; of which are spaced from one another by a slidably mounted spacer on theshaftibr axle of the skate and Jolie of "the outer raceways ot Whichifliied in. itsposition relative to the. wheel to facilitate self-adjustment of "the raceways. relativtzto' L: the wheel and shaft."

These and other features, capabilities and advantages of the present invention will appear from the subjoined detail description of one specific embodiment illustrated in the accompanying drawings, in which Fig. 1 is a transverse section of the bearing including the wheel and part of the axle.

Fig. 2 is a side elevation of the wheel mounted on the bearing.

In the embodiment shown, there is illustrated a roller skate wheel having a cylindrical tread portion I composed of any suitable material, although for professional skating, particularlyon wooden stages or wooden floors, the tread portion is preferably composed of wood. This tread portion in the present instance is provided with annular recesses 2 and 3 extending radially from the central opening 4. Preferably one end of the recess 4, as shown, is forced onto the fluted portion 5 of the main metal sleeve 6 which has an inwardly extending radial annulus I, a little to one side of the middle of the sleeve, continuing in an annular enlargement 8 and then into two axially extending diminished portions 9 and I0 provided with internal threads, the outer edges of the diminished portions 9 and III in the present instance being substantially flush with,,the outer radially extending faces of the recesses 2 'and 3, respectively. 7

In the present instance there are provided two pairs of ball bearing raceways, the inner pair including the complemental raceways II and I2 carrying the balls I3 between them, and the outer 2 claims; (01. mu -5.7:);

2., a pair including the complementalraceways. I land I5 carrying the .balls. I 6 between them.. The-inner. pairiof raceways. I ljand I 2- are firstmounted on-theaxlejl I againsttheishoulder forming. spacer I8Yinterposed .betweenithe raceway II .and.thehub I9 of the axle. II lwith..the inner nutl lll mounted on the large raceway. .I2 .so that the. an-. nulara shoulder 21 of its enlargement 22 engages the i'riner edge of. the. large raceway I2. The ,externalkthreadiof the. diininished. part. '23 and Sen largement' .22 is. screw threadedly cDnIlctdiltO the. internal thread. of the diminished cylindrical portion lluntil' the outer face of its head 24 apeproaches the inner face of the recess} .andjof the .inneredge. .of. thediminished portion 9;when the large .racewayfl 2 "will .snugly. engage the inner ifa'ce ofth'e annulus 1. mother words, "the threaded. "relationship of. the nut'ZU and the diminished portion 9 is such that it will 'lo'ckth e large raceway, I2 into .fixed engagement with the innergface of .the annulus .I The head '24. in the. present instance .willbe positioned in the recess} but its outer face willnot necessarily engage the inner face of the recess 2, sufficient clearance being deliberately provided to insure definitely anchoring the large raceway I2 against movement relative to the nut 20 and annulus I and to allow for take up in case of wear. The spacer I8 may, of course, be fixed on the shaft I1 and may be disposed against the small raceway I I after the large raceway I2 has been secured in position against the annulus I by the nut 20.

Thereupon a spacer 25 may be slidably mounted on the axle II, the axial width of which spacer 25 is greater than the axial width of the annulus I for the purposes hereinafter to be described. Thereupon the outer pair of raceways L4 and I5 are mounted on the axle II and the nut 26 is secured to the threaded end 27 of the axle II to lock the inner raceway I4 between the nut 26 and the spacer 25 when the axle I! will be locked to the tread I or vice versa. In this position it will be seen that the large raceway I5 will be spaced from the annulus I, and consequently the clearance so provided will allow for slight variations and enable the raceways I4 and I5 to adjust themselves relative to the raceways I I and I2, the axle I1 and the metal sleeve 6. In other words, the adjustment and movement will be about the large or radial outer raceway I2 which is fixed to the tread I between the annulus I and nut 20, with the spacer I8, the inner raceway II, spacer 25 and inner raceway I4 constituting an articulated bearing for the axle I I cooperating with the outer raceway I5 slidably mounted in raceway 15, as shown, the diminished portion H) of the sleeve 6 having an internal thread to receive the external thread of the diminished portion 28 of the outer nut 29, the head 30 of which in its final position engaging the flat ring 3| disposed in the recess 3 so that the ring 3| is secured between the head 30 and the outer face of the recess 3.

The nut 20 is, of course, provided with a central opening to clear the spacer l8 and axle 11, while the nut 29 is merely provided with a recess 32 to clear the end of the axle l1 and the nut 26.

While obviously the materials of the several parts may vary without departing from the general spirit of the invention, excellent results have been achieved when the tread I is composed of. rock maple, the nuts 20 and 29 and the sleeve 6 of aluminum, the spacer 25 of brass, and the raceways ll, [2, l4 and I 5 of steel.

It is obvious that various changes and modifications may be made to the details of construction Without departing from the general spirit of the invention as set forth in the appended claims.

I claim:

1. In a roller skate wheel, the combination of at the outer end thereof, a tread having a central chamber to receive a sleeve fixed in said tread and having a radially extending annulus spaced from the ends thereof with a smooth annular seat on one side of said annulus and an inter- 4 nally threaded annular chamber on the other side of said annulus, two pairs of ball bearing raceways, the said pairs of raceways being axially spaced, each pair comprising a radially inner and a radially outer raceway, a first spacer on the axle between the radially inner raceway of the axially inner pair of raceways and said shoulder, a second spacer on the axle between the radially inner raceways of the two pairs 0! raceways, a small nut screw threadedly connected to the threaded end of the axle and anchoring the two spacers and the two radially inner raceways between said small nut and said shoulder, the radially outer raceway of the axially outer pair of raceways slidably mounted in said smooth annular seat, and a large chambered nut spaced from the axle and screw threadedly connected to the inner threaded chamber of said sleeve, said large nut having an annular seat for the radially outer raceway of the axially inner pair 'of raceways and coopcrating with said annulus to fix said latter radially outer raceway against movement relative to said annulus.

2. The combination as set forth in claim 1 characterized by a second large nut connected to said sleeve adjacent to said smooth annular seat but clear of said axially outer raceway and having a central recess to clear the small nut of the axle.

I 3 FRANK J. WAGNER.

REFERENCES CITED The following references are of record in the file of this patent:

'UNITED STATES PATENTS Batesole Apr. 2'7, 1 948 

